Test, Don't Guess: Examining Clinically Feasible Methods for Identifying Quadriceps Weakness After ACL Reconstruction

Abstract:
Quadriceps weakness after ACL reconstruction (ACLR) is associated with a greater risk for secondary knee injuries and early onset knee osteoarthritis. Therefore, identifying and treating quadriceps weakness is key to protecting joint health after ACLR. Manual muscle tests are a subjective and easily biased method to assess quadriceps strength. Isokinetic dynamometry, the “gold-standard” method for objectively assessing quadriceps strength is too expensive (~$50,000) for many clinics. Therefore, athletic trainers need to be educated on alternative evidence-based techniques, such as handheld/inline dynamometry and repetition max testing, that they can use to perform objective measures of quadriceps strength during ACLR rehabilitation.

Learning Objectives:

• Explain the importance of assessing quadriceps strength as an outcome during ACL reconstruction rehabilitation.
• Analyze the pros and con of the more common and less common methods for assessing quadriceps strength.
• Examine clinically-feasible and cost-effective methods for objectively assessing quadriceps strength in clinical practice.

Level:
Essential

Domain(s):
Domain 1: Risk Reduction Wellness and Health Literacy 
Domain 4: Therapeutic Intervention 

Orthopedic Domain(s):
Domain 1: Medical Knowledge

CEUs:
1.0 Category A

Keywords:
Knee; Strength; Dynamometer

In order to earn your CEUs, you must watch the session video in its entirety and complete the assessment.

Course Expiration: 
All sessions of the NATA 76th Symposia On-Demand must be completed by October 31, 2025 at 11:59 p.m. CDT.
For full details, refer to the expiration policy on our FAQ page.